Spring for the oil pump check valve.
Fits:
FL 1956-1965
UOM: PK
Country Of Origin: USA
OEM Cross Reference: 26363-56
Accessory Items:
16-0889 – Oil Pump Snap Ring Installer
16-0519 – Oil Pump Check Valve Ball Re-Seater Tool
16-9724 – Oil Pressure Sender Unit Wrench Tool
Measurement: Overall Length: 1-3/8 inches